PHYS 261 WCU Week 1 questions well
answered to pass
Elements - correct answer ✔✔ Smallest form of matter, consisting of atoms.
Atom contains: - correct answer ✔✔ -Nucleus
-Orbitals
-Nuetral
Nucleus contains: - correct answer ✔✔ -Two particles
1) Protons (positive charge)
2) Neutrons (no charge)
Orbitals contain: - correct answer ✔✔ -One particle
1) Electrons (negative charge)
3 chemical bonds - correct answer ✔✔ -covalent
-ionic
-hydrogen
Octet rule - correct answer ✔✔ -The outermost orbital wants to be full (8 electrons)
Ionic bond - correct answer ✔✔ -1 atom gains electrons & 1 atom loses electrons
-become ions
, 2 types of ions - correct answer ✔✔ -cations = positive
-anions = negative
Major ions of the body - correct answer ✔✔ -Hydrogen, Carbon, Oxygen, Sodium, Potassium,
Calcium, Phosphate & Chloride
-H.C.O.S.P.C.P.c.
Polar molecules - correct answer ✔✔ -hydrophilic (water vs. water)
-one pole is positive and one pole is negative (like an ionic bond)
Nonpolar molecules - correct answer ✔✔ -hydrophobic (butter vs. water)
-no charge
Hydrogen bonds - correct answer ✔✔ -Polarity!
-Positive end of one molecule is attracted to the negative end of another
pH range - correct answer ✔✔ - 0-1414
Acidic pH - correct answer ✔✔ - 0-7
Alkaline / basic pH - correct answer ✔✔ - 8-14
Nuetral pH - correct answer ✔✔ - 7-8
-Blood 7.5
Hydrogen concentration - correct answer ✔✔ -High hydrogen concentration = low pH (acidic)
answered to pass
Elements - correct answer ✔✔ Smallest form of matter, consisting of atoms.
Atom contains: - correct answer ✔✔ -Nucleus
-Orbitals
-Nuetral
Nucleus contains: - correct answer ✔✔ -Two particles
1) Protons (positive charge)
2) Neutrons (no charge)
Orbitals contain: - correct answer ✔✔ -One particle
1) Electrons (negative charge)
3 chemical bonds - correct answer ✔✔ -covalent
-ionic
-hydrogen
Octet rule - correct answer ✔✔ -The outermost orbital wants to be full (8 electrons)
Ionic bond - correct answer ✔✔ -1 atom gains electrons & 1 atom loses electrons
-become ions
, 2 types of ions - correct answer ✔✔ -cations = positive
-anions = negative
Major ions of the body - correct answer ✔✔ -Hydrogen, Carbon, Oxygen, Sodium, Potassium,
Calcium, Phosphate & Chloride
-H.C.O.S.P.C.P.c.
Polar molecules - correct answer ✔✔ -hydrophilic (water vs. water)
-one pole is positive and one pole is negative (like an ionic bond)
Nonpolar molecules - correct answer ✔✔ -hydrophobic (butter vs. water)
-no charge
Hydrogen bonds - correct answer ✔✔ -Polarity!
-Positive end of one molecule is attracted to the negative end of another
pH range - correct answer ✔✔ - 0-1414
Acidic pH - correct answer ✔✔ - 0-7
Alkaline / basic pH - correct answer ✔✔ - 8-14
Nuetral pH - correct answer ✔✔ - 7-8
-Blood 7.5
Hydrogen concentration - correct answer ✔✔ -High hydrogen concentration = low pH (acidic)
